FHWA NBI 2024 Inspection record Public-domain dataset

PERCH POND ROAD

Carrying PERCH POND ROAD over RYAN BROOK

1.9 MI FR HOLDERNESS TL, Grafton, New Hampshire

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
31 t Inventory load rating

Bridge Snapshot: PERCH POND ROAD

The PERCH POND ROAD bridge in Grafton, New Hampshire carries PERCH POND ROAD over RYAN BROOK. It was built in 1940, making it 86 years old today. The structure is built primarily of concrete and spans 1 section, stretching 7.9 meters (26 feet) end to end. Daily traffic averages 90 vehicles, placing it in the lower-traffic tier of New Hampshire bridges. It is owned and maintained by City/Municipal Highway Agency.

The latest FHWA inspection records show a deck rating of 5/9, superstructure at 5/9, substructure at 4/9. The weakest component sits in poor condition. Because at least one major component scores 4 or lower, this bridge falls in FHWA's Poor condition category. That category is not a closure order. Its NBI inventory load rating is 30.7 metric tons.

Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.

How PERCH POND ROAD compares

▼ 7.5
Load rating vs New Hampshire average (38.2 t)
Bottom 34%
Lower load rating than 66% of New Hampshire bridges
544
Bridges in Grafton · 43 in Poor condition
PERCH POND ROAD 30.7 t
New Hampshire average 38.2 t

Live comparison across New Hampshire.

Historical Sufficiency Rating

PlainBridge-computed
69.2 / 100 - historical 50–79.9 band
Structural adequacy /55
29.3
Serviceability /30
27.0
Essentiality /15
14.9
Special reductions
−2.0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Deck
5/9
Fair (5–6)
Superstructure
5/9
Fair (5–6)
Substructure
4/9
Poor (1–4)
Inventory Load Rating
30.7 t
NBI inventory level (metric tons)
Overall Condition
Poor

Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.

Structural Details

Year Built
1940
Material
Concrete
Number of Spans
1
Structure Length
7.9 m (26 ft)
Deck Width
7.6 m (25 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
90 vehicles/day
Structure Number
003501700007500

Condition Analysis

  • The deck (driving surface) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
  • The superstructure (beams and supports above the deck) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
  • The substructure (piers and abutments) is in poor condition (4/9), showing advanced deterioration that may require priority repair.

How to read this record

PERCH POND ROAD is in the federal Poor condition category. That is a component-based result, not a closure order.

  • NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
  • Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
  • Compare PERCH POND ROAD against other structures in Grafton and across New Hampshire. New Hampshire bridges
  • Noticed visible damage or a safety concern? Report it to the agency that owns the bridge, or call 911 in an emergency. How to report a bridge

Condition codes come straight from the FHWA National Bridge Inventory and are not a real-time safety judgment. Only the owning agency, a state DOT, county, or other owner, can post, restrict, or close a bridge.

Frequently Asked Questions

What do the condition ratings mean for PERCH POND ROAD?

PERCH POND ROAD in Grafton, New Hampshire has a deck rating of 5/9, superstructure rating of 5/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.

How often is PERCH POND ROAD inspected?

PERCH POND ROAD's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval. It carries about 90 vehicles per day.

What does “structurally deficient” mean in older bridge reports?

FHWA retired that reported status beginning with the 2018 archive. PERCH POND ROAD is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for PERCH POND ROAD?

PERCH POND ROAD has an NBI inventory load rating of 30.7 metric tons.

Who is responsible for maintaining PERCH POND ROAD?

PERCH POND ROAD is owned and maintained by City/Municipal Highway Agency.

How old is PERCH POND ROAD and does age affect safety?

PERCH POND ROAD was built in 1940, making it 86 years old.

Disclaimer: Bridge condition data is from the FHWA NBI and reflects the last reported inspection. A Poor condition rating is not a live declaration that a bridge is closed or unsafe for travel. For current closure, posting, or safety information, contact the responsible transportation agency.

Data sourced from the Federal Highway Administration National Bridge Inventory. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.